Which physiologic sign is commonly associated with pain?

Which physiologic sign is commonly associated with pain?

• A. Tachycardia
• B. Tachypnea
• C. Hypertension
• D. Diaphoresis

Answer: (D)

Pain triggers the sympathetic nervous system, leading to autonomic signs as the body responds to distress. Sweating (diaphoresis) is a classic visible indicator of this sympathetic surge and is commonly seen with acute pain. While tachycardia, tachypnea, and hypertension can occur with pain, they’re less specific and can arise from many other factors such as anxiety, fever, or underlying disease. Diaphoresis serves as a more consistent sign of pain-related autonomic activation, making it the best choice.

Pain triggers the sympathetic nervous system, leading to autonomic signs as the body responds to distress. Sweating (diaphoresis) is a classic visible indicator of this sympathetic surge and is commonly seen with acute pain. While tachycardia, tachypnea, and hypertension can occur with pain, they’re less specific and can arise from many other factors such as anxiety, fever, or underlying disease. Diaphoresis serves as a more consistent sign of pain-related autonomic activation, making it the best choice.